sfopera10_0702_LKM.jpg Mayor Gavin Newsom and girlfriend Jennifer Siebel in Maggie Norris couture, arrive at the War Memorial Opera House for the San Francisco Opera Opening Night Gala on Friday night. (Laura Morton/Special to the Chronicle) *** Gavin Newsom *** Jennifer Siebel less

sfopera10_0702_LKM.jpg Mayor Gavin Newsom and girlfriend Jennifer Siebel in Maggie Norris couture, arrive at the War Memorial Opera House for the San Francisco Opera Opening Night Gala on Friday night. (Laura ... more

sfopera10_0702_LKM.jpg Mayor Gavin Newsom and girlfriend Jennifer Siebel in Maggie Norris couture, arrive at the War Memorial Opera House for the San Francisco Opera Opening Night Gala on Friday night. (Laura Morton/Special to the Chronicle) *** Gavin Newsom
*** Jennifer Siebel less

sfopera10_0702_LKM.jpg Mayor Gavin Newsom and girlfriend Jennifer Siebel in Maggie Norris couture, arrive at the War Memorial Opera House for the San Francisco Opera Opening Night Gala on Friday night. (Laura ... more

Photo: Laura Morton

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sfopera10_0542_LKM.jpg Amber Marie Bently in Emanuel Ungaro, arrives at the San Francisco Opera Opening Night Gala. Ungaro, the French fashion house is owned by local couple Asim and Isha Abdullah, and was one of the corporate sponsors of the event. (Laura Morton/Special to the Chronicle) *** Amber Marie Bently
*** Asim Abdullah
*** Isha Abdullah
*** Emanuel Ungaro less

sfopera10_0542_LKM.jpg Amber Marie Bently in Emanuel Ungaro, arrives at the San Francisco Opera Opening Night Gala. Ungaro, the French fashion house is owned by local couple Asim and Isha Abdullah, and was one ... more

Photo: Laura Morton

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S.F. Opera: Crown the best opening-night gown

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Check out the dresses below and choose the most fabulous. Results of the poll will be posted Sunday on SFGate.com and in Sunday's Style section.